Air quality risks after the Ohio derailment
1 big thing
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The EPA Monitors the Risk of Inhaling Carcinogenic Chemicals
The EPA used handheld sensors that were not designed to measure the chemicals of interest. They also measured what's called whole air samples where they draw air into containers and then take them back to the lab for measurements. Those measurements were done at a time when the wind was blowing from East Palestine towards the accident site. And so it was unlikely that any chemicals released from the accident site would actually be measured.
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